screencasts in teaching with geogebra
DESCRIPTION
SCREENCASTS IN TEACHING WITH GEOGEBRA. Matija Lokar, [email protected]. SCREENCASTS IN TEACHING WITH GEOGEBRA. An example. http://lokar.fmf.uni-lj.si / www/GeoGebra4/newFeatures.htm. Why. New subject to teach Computer tools in mathematics Project NAUK - PowerPoint PPT PresentationTRANSCRIPT
SCREENCASTS IN TEACHING WITH GEOGEBRA
SCREENCASTS IN TEACHING WITH GEOGEBRA
Matija Lokar,[email protected]
GEOGEBRA CONFERENCE 2011, LINZ, AUGUST 29 - 31, 2011
An example
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
http://lokar.fmf.uni-lj.si/www/GeoGebra4/newFeatures.htm
Why
New subject to teachComputer tools in mathematics
Project NAUKDevelopment of e-materials for mathematics, physics, computer science and logic
Project EduMATICSDevelopment of an in-service training course for math teachers
„Crash“ course on new features of GeoGebra 4All required appropriate teaching instructions for various usages of technology
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Problems when teaching with tools
When tools (as GeoGebra) are used in teaching mathematicsStudents are usually exposed to two new things:
mathematicstools usage
They usually quite nicely follow the demonstration, but afterwards there are problems with understanding
of the mathematical facts demonstratedof the use of a particular tool
Quite often „in whole“ student understands the idea Be it on mathematics or on a tool usageSome details needed to be repeated again (and again …)
So we give the student appropriate notes
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
In text form
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Improved with pictures ...
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
But as
we are in the „YouTube Era"we should use video instead!
First attempts:Videotaping a person behind a computer and record his/her narration
Person & computer & camera = ProblemsProblems with sound, appropriate lighting conditionsLengthy „postproduction“Translation?
We do not need "real video" – we just want to follow what is going on a computer screen Screen capturing programs
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
DEBUG MODE WINK
An example of such a tool„Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel etc. ).“Plenty of others: Adobe Captivate, CamStudio, Camtasia …Freeware
http://www.debugmode.com/wink/
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Classical demonstration
Students just observe the video
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Video Instructions / GeoGebra Applet
Some examples
„Crash“ course on new features of GeoGebra 4http://lokar.fmf.uni-lj.si/www/GeoGebra4/newFeatures.htm
Project EduMATICSDevelopment of an in-service training course for math teachershttp://lokar.fmf.uni-lj.si/www/EduMatics/ http://lokar.fmf.uni-lj.si/www/EduMatics/V3/mod1/Overview.html
Project NAUKDevelopment of e-materials for mathematics, physics, computer science and logichttp://www.nauk.si http://www.nauk.si/materials/1606/out/index.html
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Some observations
Do not use soundIt is very hard to get it rightUse "explanation balloons" instead
Skip as much typing as possible (get rid of intermediate screens) It is very boring (especially on subsequent views) waiting for the whole command to be typed
You can not find timing appropriate for everyoneStop at certain important parts (click required to continue)To allow the student to rethink the seen situation
Provide also back buttons to simplify repetition of the last section seen
Extract text in separate file – to simplify the changes
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
E-LEARNING CONTENT SHOULD BE EASILY ADAPTABLE BY THE TEACHERS
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Authoring the resources
Autor / teacher / student relationAuthor creates the resources for an ideal situation, teacher teaches in “real world”Author should merely be an initiator of the resource in various forms
Teacher - "end provider" - is the one who upgrades the idea, adapts it to a certain pedagogical situation, his/her beliefs, …
Modifiability„Hi, where can I get your .ggb? I will use it at my class and need to change just a few things.“Teachers should be "in charge"
Provide access to the sourcesIf needed, they can alter the explanation, add additional stop points ...Probably the main reason to use Wink
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
5 minutes between classes
And you observed a mistake in an explanation in a videotutorial
A slovenian word ;-)5 steps without knowledge of Wink is enough to modify the resource
Download source files Change txt fileOpen wnk fileUse Import text filePress render button
DEMO
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Is it true?
Teachers do not need modifiability of resourceswill not modify resourceshave no knowledege to modify resources
Majority of changes proposed are quite simpleBut nevertheless important for individual teacher
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Re-using resources
Author creates the resources for an ideal situation, teacher teaches in “real world”Teacher should gain control over the resource
He/she is the one who must adapt the resource to concrete teaching situation and to a particular student
Author should merely be an initiator of the resource in various forms
Teacher is the one who upgrades the idea, adapts it to a certain pedagogical situation, his/her beliefs, … Teacher has the possibility to
adapt,change and (re)combine
the resources provided by the author(s)
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
"Solution"
Respect teacher – the end provider of the resource
Allow him/her to easily modify the resourceSeparate appearance from the contentUse simple toolsUse standard formatsProvide sources
wnk, html, ggbEasy to obtain
GeoGebra Conference 2011, Linz, August 29 - 31, 2011
Many more to be told, but …
GeoGebra Conference 2011, Linz, August 29 - 31, 2011